IOCTL_KLIB_MAKESNAP (Compact 2013)

10/16/2014

This I/O control message saves a snapshot of memory to persistent storage. Send this message with KernelLibIoControl.

Syntax

BOOL KernelLibIoControl(
    HANDLE hDevice,           // handle to the DLL
    DWORD dwIoControlCode,    // use IOCTL_KLIB_MAKESNAP
    LPVOID lpInBuffer,        // pointer to input buffer
    DWORD nInBufferSize,      // input buffer size
    LPVOID lpOutBuffer,       // pointer to output buffer
    DWORD nOutBufferSize,     // output buffer size
    LPDWORD lpBytesReturned   // number of bytes returned
);

Parameters

• hDevice
  [in] Handle to the DLL. Must be set to KMOD_CORE.

• dwIoControlCode
  [in] Control code for the operation. Use IOCTL_KLIB_MAKESNAP for this operation.

• lpInBuffer
  [in] Set to NULL.

• nInBufferSize
  [in] Set to 0 (zero).

• lpOutBuffer
  [out] Set to NULL.

• nOutBufferSize
  [out] Set to 0 (zero).

• lpBytesReturned
  [out] Set to NULL.

Return Value

Returns TRUE if the kernel can take the snapshot; otherwise, returns FALSE.

Remarks

This I/O control is only used if an OEM supports snapshot boot.

Requirements

See Also

Reference

Other OAL IOCTLs